Keep comfortable in any activity you take part in with the Patagonia Capliene Midweight Crew. The Capilene Midweight Crew is constructed out of moisture-wicking, quick drying performance fabric that features Polygiene permanent odor control. All fabric is Bluesign approved. Slim Fit - Midweight Baselayer, HeiQ Fresh Tech Odor Control, Bluesign Approved and Fair Trade Certified, Fit: Tight, Warranty: Lifetime, Wind Protection: No, Material: Synthetic, Weight: Mid, Type: Top, Wicking Properties: Yes, Water Resistant: No, Recommended Use: Snow, Antimicrobial: Yes, Anti Odor: Yes, Quick Drying: Yes, Moisture Wicking: Yes, Model Year: 2022, Product ID: 580805, Model Number: 44427 BLK S, GTIN: 0191743888830